Renovated energy conscious office building achieves LEED Gold Certification.

1101 2nd Avenue

  • Seattle, Washington

Completed: 2015

4EA considers 1101 2nd Avenue a successful large-scale renovation. With the integrity of an iconic Seattle building maintained while making energy conscious improvements. 

Designed by renowned pacific northwest architect Paul Thiry, this building captures the Northwest Modernism movement with its broad lines and minimal decoration. The concrete and glass structure was originally the Washington Mutual Savings Bank Headquarters in 1969. After remaining vacant for many years, the building continues on with new purpose as a LEED Gold certified office space.

4EA’s role in assisting Mithun with renovation began with a condition assessment of the existing enclosure elements, followed by an analysis of the intended interventions. We then provided consulting services during the design and construction phases, to include enclosure testing. In addition to seismic updates, the improvements also included increases of usable square footage by enclosing the exterior catwalk around the perimeter of each level. New enclosure elements were designed to assimilate the building’s look with the surrounding downtown aesthetic, while remaining energy conscious. This created a more inviting and modern office building.

4EA helped the team Find A Solution to the complexity of enlarging the enclosure and improving its energy performance within the confines of an existing concrete structure.

  • Commercial